<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
<!--  三个js有相同变量 name age 为避免冲突 给加上 type="module" 使其成独立模块-->
  <script src="one.js" type="module"></script>
  <script src="two.js" type="module"></script>
  <script src="index.js" type="module"></script>
</head>
<body>

</body>
</html>